Double-action force-pump



(No Model.)

S. J. HARRIS.

DOUBLE ACTION FORGE PUMP.

No. 460,964. Patented Oct. 13, 1891.

W 21% Twvezvm NITED STATES PATENT OFFICE.

SCOTT J. HARRIS, OF ORTONVILLE, IOYVA.

DOU BLE-ACTlON FORCE-PU M P.

SPECIFICATION forming part of Letters Patent No. 460,964, dated October13, 1891.

Application filed May 1, 1891. Serial No. 391,243. (No model.)

To alt whom, it may concern.-

Be 1t known that I, ScoT'r J. HARRIS, a citizen of the United States ofAmerica, residing at Ortonville, in the county of Dallas and btate ofIowa, have invented a new and useful Double-Action Force-Pump, of whichthe following is a specification.

. My object is to provide means for forcing a continuous stream of waterthrough a welltube and also of providing a cheap and convenlentsupporting-post for the well-tube and the operative parts on the outsideof the welltube; and my invention consists in the c011- struction andcombination of a supportingpost having a lever or handle fulcrumed in Ustop and a submerged force-pump having two sets of valves and two pistonswhich are alternately reciprocated, as required to force a continuousstream of water through the wel1- tube and pump-spout connectedtherewith, by means of connecting-rods which are attached to the pistonsand to the pump-handle on opposite sides of the supporting-posts in sucha manner as to elevate one connectingrod, piston, and set of valveswhile the other connecting-rod, piston, and set of valves is beinglowered, as hereinafter more fully described, pointed out in my claim,and illustrated in the accompanying drawings, in which Figure 1 is anenlarged detail view of the submerged part of the pump, showing theconstruction, arrangement, and combination of the pistons and valveswith the connectingrods and other parts. Fig. 2 is a front elevation ofthe complete device placed in a well as required for practical use; andFig. 3 is a side elevation of the complete device, taken from a point atright angles from Fig. 2.

A is a base, preferably made of cast metal, completein one piece andadapted to allow a supporting-post to be fixed thereto.

B is a supporting-post, preferably made of tubular iron and attached tothe base A by means of a screw on its lower end that enters ascrew-threaded bore in the base A. It is adapted to support a well-tubeand has at its top perforated projections adapted to allow a pumphandleto be fulcrumed thereto.

0 is a pump-handle of common form fulcrumed in the top of thesupporting-post B.

D is a well-tube'attached to the supporting post and curved at its top,as required, to form a spout D and its lower end has branches D asrequired, to connect it with the two valvechambers, as shown in Fig. 1.

F are valve-chambers made in two parts. They are connected to thebranches D and are adapted to allow spherical balls F to operatetherein, and their lower sections are so shaped as to producevalve-seats F for the ball-valves.

II are open-ended cylinders connected with the lower ends of thevalve-chambers F. Their lower ends are slotted, as required, to allowpiston-rods to be connected with pistons therein.

J are open-ended pump-pistons on the inside of the cylinders H. They arecylindrical in shape, and attached to their tops in a common way arecheek-valves J K are stirrup-shaped piston-rods attachedto the lowerends of the piston J. They operate on the outside of the cylinders IIand valve-chamber F and traverse the slots in th ends of the cylindersH.

L are connecting-rods attached to the pumphandle G on opposite sides ofits fulcrum and to the piston-rods K to impart reciprocating motions tothe pistons J and thereby alternately open the check-valves J attachedthereto, when the handle O is operated, as required, to force'acontinuous stream of water up through the valve-chambers F and thewell-tube D and its spout D It is believed from the foregoing detaileddescription of the construction and function of the various parts whichcomprise my invention that the construction and operation of the wholedevice will be readily understood by any one skilled in the art to whichit pertains.

hat I claim as my invention, and desire to secure by Letters Patent, is-

An improved double-action force-pump comprising a base, asupporting-post, and a handle fulcrumed therein, substantially asdescribed, a-well-tube attached to the supporting-post and curved at thetop, as represented, to form a spout, a branch having two arms extendingin opposite directions and having a screw-threaded connection with thesaid tube, two ball-valve chambers formed complete in themselves andhaving screw-threadand having approximately stirru p-shaped devices ontheir lower ends which are extended through the vertical slots in thesaid cylinders and attached to the valve-bearing pistons, substantiallyas shown and described.

' SCOTT J. HARRIS.

WVitne-sses:

O. O. JOHNSON,

THOMAS G. ORWIG.

